SU60277A1 - Device for suctioning air from the pleural cavity with spontaneous pneumothorax - Google Patents

Description

For suctioning air from the pleural cavity during spontaneous pneumothorax, in the patent literature, devices are already known which consist of a suction device, a manometer, and a needle that is specifically strengthened in the cavity of the pleura. Similar devices are also not novel, in which suction is regulated by a mariotta vessel with a siphon. In the proposed device for eliminating the build-up of positive pressure in the pleural cavity and automatic, at the physician's will, for adjusting the pressure in it, and also to avoid the need for frequent evacuation of air By increasing asphyxiation, the hose from the needle is connected to a long glass tube that is immersed in the liquid of the mariotte vessel. The short tube of the latter is made open for air outlet.

FIG. 1 shows the type of instrument in the case; in fig. 2 - a detail of the device; in fig. 3 - stylet to the needle for insertion into the pleural cavity.

The proposed apparatus for suctioning air from the pleural cavity encloses the needle 1, which is inserted into the pleural cavity and

communicated with rubber hose a and connection 5 with pressure gauge 2, and connection 4 with a mariotte vessel with disinfectant filled to a certain level. The short tube S of the vessel 5 is left open for removal from the pleural cavity of air under high pressure. Air is passed through the desired height of the disinfectant column. The pressure in the pleural cavity depends on the height of the liquid column in the vessel.

In the course of the hose from the needle / valve 6 is placed with a scale 9, which regulates the diameter of the hole that allows air from the pleural cavity. Transformer W is designed to lower the current from 120 to 4 V for illumination at night by a light bulb of the gauge scale 2.

To fix the needle in the pleural cavity, there is a device consisting of an ebonite lining 13 (Fig. 2) with a round hole through which the cylinder 15 of the needle passes. The diameter of the cylinder is smaller than the diameter of the washer II on the needle, which prevents, after laying the gasket 13, the needle creeps out of the pleural cavity. 14 spring gripper with elastic bands 20

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and with double rings, it is intended to tighten the already applied fixing c 21 covering the chest, not changing the position of the tightened yarn 18. The ring 17 serves to connect the buckle 18 with the rest of the securing chain 21. The needle is provided with a conical end for insertion of a cannula connecting the pleural cavity with a pressure gauge 2 and a mariotta vessel 5. A needle is inserted into the pleural cavity at the crest of stylet 12 (Fig. 3).

The device is placed in a portable wooden case 22 (Fig. 1) equipped with a carrying handle.

The air entering through the valve opening of the lung into the pleural cavity cannot reach positive numbers, since the pleural cavity is connected to the atmospheric air through the apparatus system. Home short tube 5.

On the first day of the occurrence of spontaneous valve pneumothorax, in order to create negative pressure and reaching O in the pleural cavity, the liquid column in the vessel 3 should be minimal, which is achieved by extending the tube 7. The latter should only be slightly covered with a thin layer of disinfectant liquid in the vessel 5, and valve 6 must be fully open and in a vertical position. On the same day, in order to promote the healing of the valve opening, it is possible to increase the pressure in the pleural cavity to the desired height. The pressure is strictly regulated in accordance with the patient's well-being, heart position and mediastinum. Regulation is achieved by increasing the column of disinfectant fluid, i.e. lowering down tube 7, or turning the valve 6. If the pressure increase in the pleural cavity set by the doctor does not worsen the patient's condition, valve 6 is installed in a horizontal position, which turns off the message with the vessel 3 and the The air exits the pleural cavity. The communication of the pleural cavity with the manometer 2 continues as long as there is a need for it. If the patient's condition worsens due to an increase in the pressure in the pleural cavity set by the doctor, the valve 6 is shifted back to the vertical position and the tube 7 moves upwards, thus adjusting the height of the liquid column in the vessel 3 to obtain the desired pressure in the pleural cavity. Thus, in accordance with the condition of the patient, the doctor, at any time during the application of the valve pneumothorax, regulates the air pressure in the pleural cavity at its discretion.

Subject invention

Claims (2)

1. A device for suctioning air from the pleural cavity with spontaneous pneumothorax, which includes a needle fixed in the pleural cavity, connected to a manometer and a mariotta vessel with varying fluid level, characterized in that to regulate the amount of air outflow from the pleural cavity, the needle from the needle / is connected to a long rigid (glass) tube 7 immersed in a liquid of a mariotte vessel 3, and a short tube 8 of the same vessel 3 is left open for air to escape. 2. The form of the apparatus according to claim 1, characterized in that along the hose a and the needle / edge 6 is mounted with a scale 9 for controlling the outflow of air.